MediaWiki  1.27.2
MediaHandler.php
Go to the documentation of this file.
1 <?php
29 abstract class MediaHandler {
30  const TRANSFORM_LATER = 1;
31  const METADATA_GOOD = true;
32  const METADATA_BAD = false;
33  const METADATA_COMPATIBLE = 2; // for old but backwards compatible.
37  const MAX_ERR_LOG_SIZE = 65535;
38 
40  protected static $handlers = [];
41 
48  static function getHandler( $type ) {
50  if ( !isset( $wgMediaHandlers[$type] ) ) {
51  wfDebug( __METHOD__ . ": no handler found for $type.\n" );
52 
53  return false;
54  }
55  $class = $wgMediaHandlers[$type];
56  if ( !isset( self::$handlers[$class] ) ) {
57  self::$handlers[$class] = new $class;
58  if ( !self::$handlers[$class]->isEnabled() ) {
59  wfDebug( __METHOD__ . ": $class is not enabled\n" );
60  self::$handlers[$class] = false;
61  }
62  }
63 
64  return self::$handlers[$class];
65  }
66 
70  public static function resetCache() {
71  self::$handlers = [];
72  }
73 
78  abstract public function getParamMap();
79 
88  abstract public function validateParam( $name, $value );
89 
96  abstract public function makeParamString( $params );
97 
104  abstract public function parseParamString( $str );
105 
113  abstract function normaliseParams( $image, &$params );
114 
134  abstract function getImageSize( $image, $path );
135 
144  function getMetadata( $image, $path ) {
145  return '';
146  }
147 
163  static function getMetadataVersion() {
164  $version = [ '2' ]; // core metadata version
165  Hooks::run( 'GetMetadataVersion', [ &$version ] );
166 
167  return implode( ';', $version );
168  }
169 
180  function convertMetadataVersion( $metadata, $version = 1 ) {
181  if ( !is_array( $metadata ) ) {
182 
183  // unserialize to keep return parameter consistent.
184  MediaWiki\suppressWarnings();
185  $ret = unserialize( $metadata );
186  MediaWiki\restoreWarnings();
187 
188  return $ret;
189  }
190 
191  return $metadata;
192  }
193 
201  function getMetadataType( $image ) {
202  return false;
203  }
204 
221  function isMetadataValid( $image, $metadata ) {
222  return self::METADATA_GOOD;
223  }
224 
257  public function getCommonMetaArray( File $file ) {
258  return false;
259  }
260 
273  function getScriptedTransform( $image, $script, $params ) {
274  return false;
275  }
276 
287  final function getTransform( $image, $dstPath, $dstUrl, $params ) {
288  return $this->doTransform( $image, $dstPath, $dstUrl, $params, self::TRANSFORM_LATER );
289  }
290 
303  abstract function doTransform( $image, $dstPath, $dstUrl, $params, $flags = 0 );
304 
313  function getThumbType( $ext, $mime, $params = null ) {
314  $magic = MimeMagic::singleton();
315  if ( !$ext || $magic->isMatchingExtension( $ext, $mime ) === false ) {
316  // The extension is not valid for this MIME type and we do
317  // recognize the MIME type
318  $extensions = $magic->getExtensionsForType( $mime );
319  if ( $extensions ) {
320  return [ strtok( $extensions, ' ' ), $mime ];
321  }
322  }
323 
324  // The extension is correct (true) or the MIME type is unknown to
325  // MediaWiki (null)
326  return [ $ext, $mime ];
327  }
328 
335  public function getStreamHeaders( $metadata ) {
336  return [];
337  }
338 
345  public function canRender( $file ) {
346  return true;
347  }
348 
356  public function mustRender( $file ) {
357  return false;
358  }
359 
366  public function isMultiPage( $file ) {
367  return false;
368  }
369 
376  function pageCount( File $file ) {
377  return false;
378  }
379 
386  function isVectorized( $file ) {
387  return false;
388  }
389 
398  function isAnimatedImage( $file ) {
399  return false;
400  }
401 
409  function canAnimateThumbnail( $file ) {
410  return true;
411  }
412 
417  function isEnabled() {
418  return true;
419  }
420 
438  $gis = $this->getImageSize( $image, $image->getLocalRefPath() );
439  if ( $gis ) {
440  return [
441  'width' => $gis[0],
442  'height' => $gis[1]
443  ];
444  } else {
445  return false;
446  }
447  }
448 
457  function getPageText( File $image, $page ) {
458  return false;
459  }
460 
466  public function getEntireText( File $file ) {
467  $numPages = $file->pageCount();
468  if ( !$numPages ) {
469  // Not a multipage document
470  return $this->getPageText( $file, 1 );
471  }
472  $document = '';
473  for ( $i = 1; $i <= $numPages; $i++ ) {
474  $curPage = $this->getPageText( $file, $i );
475  if ( is_string( $curPage ) ) {
476  $document .= $curPage . "\n";
477  }
478  }
479  if ( $document !== '' ) {
480  return $document;
481  }
482  return false;
483  }
484 
513  function formatMetadata( $image, $context = false ) {
514  return false;
515  }
516 
527  function formatMetadataHelper( $metadataArray, $context = false ) {
528  $result = [
529  'visible' => [],
530  'collapsed' => []
531  ];
532 
533  $formatted = FormatMetadata::getFormattedData( $metadataArray, $context );
534  // Sort fields into visible and collapsed
535  $visibleFields = $this->visibleMetadataFields();
536  foreach ( $formatted as $name => $value ) {
537  $tag = strtolower( $name );
538  self::addMeta( $result,
539  in_array( $tag, $visibleFields ) ? 'visible' : 'collapsed',
540  'exif',
541  $tag,
542  $value
543  );
544  }
545 
546  return $result;
547  }
548 
555  protected function visibleMetadataFields() {
557  }
558 
582  protected static function addMeta( &$array, $visibility, $type, $id, $value, $param = false ) {
583  $msg = wfMessage( "$type-$id", $param );
584  if ( $msg->exists() ) {
585  $name = $msg->text();
586  } else {
587  // This is for future compatibility when using instant commons.
588  // So as to not display as ugly a name if a new metadata
589  // property is defined that we don't know about
590  // (not a major issue since such a property would be collapsed
591  // by default).
592  wfDebug( __METHOD__ . ' Unknown metadata name: ' . $id . "\n" );
593  $name = wfEscapeWikiText( $id );
594  }
595  $array[$visibility][] = [
596  'id' => "$type-$id",
597  'name' => $name,
598  'value' => $value
599  ];
600  }
601 
608  function getShortDesc( $file ) {
609  return self::getGeneralShortDesc( $file );
610  }
611 
618  function getLongDesc( $file ) {
619  return self::getGeneralLongDesc( $file );
620  }
621 
628  static function getGeneralShortDesc( $file ) {
629  global $wgLang;
630 
631  return htmlspecialchars( $wgLang->formatSize( $file->getSize() ) );
632  }
633 
640  static function getGeneralLongDesc( $file ) {
641  return wfMessage( 'file-info' )->sizeParams( $file->getSize() )
642  ->params( '<span class="mime-type">' . $file->getMimeType() . '</span>' )->parse();
643  }
644 
653  public static function fitBoxWidth( $boxWidth, $boxHeight, $maxHeight ) {
654  $idealWidth = $boxWidth * $maxHeight / $boxHeight;
655  $roundedUp = ceil( $idealWidth );
656  if ( round( $roundedUp * $boxHeight / $boxWidth ) > $maxHeight ) {
657  return floor( $idealWidth );
658  } else {
659  return $roundedUp;
660  }
661  }
662 
669  function getDimensionsString( $file ) {
670  return '';
671  }
672 
683  function parserTransformHook( $parser, $file ) {
684  }
685 
696  function verifyUpload( $fileName ) {
697  return Status::newGood();
698  }
699 
708  function removeBadFile( $dstPath, $retval = 0 ) {
709  if ( file_exists( $dstPath ) ) {
710  $thumbstat = stat( $dstPath );
711  if ( $thumbstat['size'] == 0 || $retval != 0 ) {
712  $result = unlink( $dstPath );
713 
714  if ( $result ) {
715  wfDebugLog( 'thumbnail',
716  sprintf( 'Removing bad %d-byte thumbnail "%s". unlink() succeeded',
717  $thumbstat['size'], $dstPath ) );
718  } else {
719  wfDebugLog( 'thumbnail',
720  sprintf( 'Removing bad %d-byte thumbnail "%s". unlink() failed',
721  $thumbstat['size'], $dstPath ) );
722  }
723 
724  return true;
725  }
726  }
727 
728  return false;
729  }
730 
744  public function filterThumbnailPurgeList( &$files, $options ) {
745  // Do nothing
746  }
747 
753  public function canRotate() {
754  return false;
755  }
756 
771  public function getRotation( $file ) {
772  return 0;
773  }
774 
786  protected function logErrorForExternalProcess( $retval, $err, $cmd ) {
787  # Keep error output limited (bug 57985)
788  $errMessage = trim( substr( $err, 0, self::MAX_ERR_LOG_SIZE ) );
789 
790  wfDebugLog( 'thumbnail',
791  sprintf( 'thumbnail failed on %s: error %d "%s" from "%s"',
792  wfHostname(), $retval, $errMessage, $cmd ) );
793  }
794 
802  public function getAvailableLanguages( File $file ) {
803  return [];
804  }
805 
818  public function getDefaultRenderLanguage( File $file ) {
819  return null;
820  }
821 
832  public function getLength( $file ) {
833  return 0.0;
834  }
835 
841  public function isExpensiveToThumbnail( $file ) {
842  return false;
843  }
844 
851  public function supportsBucketing() {
852  return false;
853  }
854 
861  public function sanitizeParamsForBucketing( $params ) {
862  return $params;
863  }
864 
890  public function getWarningConfig( $file ) {
891  return null;
892  }
893 }
isMultiPage($file)
True if the type has multi-page capabilities.
static fitBoxWidth($boxWidth, $boxHeight, $maxHeight)
Calculate the largest thumbnail width for a given original file size such that the thumbnail's height...
getLocalRefPath()
Get an FS copy or original of this file and return the path.
Definition: File.php:432
validateParam($name, $value)
Validate a thumbnail parameter at parse time.
getImageSize($image, $path)
Get an image size array like that returned by getimagesize(), or false if it can't be determined...
removeBadFile($dstPath, $retval=0)
Check for zero-sized thumbnails.
$context
Definition: load.php:44
formatMetadata($image, $context=false)
Get an array structure that looks like this:
static getMetadataVersion()
Get metadata version.
static singleton()
Get an instance of this class.
Definition: MimeMagic.php:366
null means default in associative array with keys and values unescaped Should be merged with default with a value of false meaning to suppress the attribute in associative array with keys and values unescaped noclasses & $ret
Definition: hooks.txt:1798
makeParamString($params)
Merge a parameter array into a string appropriate for inclusion in filenames.
getLongDesc($file)
Long description.
wfHostname()
Fetch server name for use in error reporting etc.
processing should stop and the error should be shown to the user * false
Definition: hooks.txt:189
isExpensiveToThumbnail($file)
True if creating thumbnails from the file is large or otherwise resource-intensive.
$value
getPageText(File $image, $page)
Generic getter for text layer.
if($ext== 'php'||$ext== 'php5') $mime
Definition: router.php:65
$files
it s the revision text itself In either if gzip is the revision text is gzipped $flags
Definition: hooks.txt:2548
const TRANSFORM_LATER
getWarningConfig($file)
Gets configuration for the file warning message.
static resetCache()
Resets all static caches.
$wgMediaHandlers
Plugins for media file type handling.
when a variable name is used in a it is silently declared as a new local masking the global
Definition: design.txt:93
const METADATA_BAD
magic word & $parser
Definition: hooks.txt:2321
static getVisibleFields()
Get a list of fields that are visible by default.
formatMetadataHelper($metadataArray, $context=false)
sorts the visible/invisible field.
wfDebug($text, $dest= 'all', array $context=[])
Sends a line to the debug log if enabled or, optionally, to a comment in output.
logErrorForExternalProcess($retval, $err, $cmd)
Log an error that occurred in an external process.
this class mediates it Skin Encapsulates a look and feel for the wiki All of the functions that render HTML and make choices about how to render it are here and are called from various other places when and is meant to be subclassed with other skins that may override some of its functions The User object contains a reference to a and so rather than having a global skin object we just rely on the global User and get the skin with $wgUser and also has some character encoding functions and other locale stuff The current user interface language is instantiated as $wgLang
Definition: design.txt:56
The index of the header message $result[1]=The index of the body text message $result[2 through n]=Parameters passed to body text message.Please note the header message cannot receive/use parameters. 'ImportHandleLogItemXMLTag':When parsing a XML tag in a log item.Return false to stop further processing of the tag $reader:XMLReader object $logInfo:Array of information 'ImportHandlePageXMLTag':When parsing a XML tag in a page.Return false to stop further processing of the tag $reader:XMLReader object &$pageInfo:Array of information 'ImportHandleRevisionXMLTag':When parsing a XML tag in a page revision.Return false to stop further processing of the tag $reader:XMLReader object $pageInfo:Array of page information $revisionInfo:Array of revision information 'ImportHandleToplevelXMLTag':When parsing a top level XML tag.Return false to stop further processing of the tag $reader:XMLReader object 'ImportHandleUploadXMLTag':When parsing a XML tag in a file upload.Return false to stop further processing of the tag $reader:XMLReader object $revisionInfo:Array of information 'ImportLogInterwikiLink':Hook to change the interwiki link used in log entries and edit summaries for transwiki imports.&$fullInterwikiPrefix:Interwiki prefix, may contain colons.&$pageTitle:String that contains page title. 'ImportSources':Called when reading from the $wgImportSources configuration variable.Can be used to lazy-load the import sources list.&$importSources:The value of $wgImportSources.Modify as necessary.See the comment in DefaultSettings.php for the detail of how to structure this array. 'InfoAction':When building information to display on the action=info page.$context:IContextSource object &$pageInfo:Array of information 'InitializeArticleMaybeRedirect':MediaWiki check to see if title is a redirect.&$title:Title object for the current page &$request:WebRequest &$ignoreRedirect:boolean to skip redirect check &$target:Title/string of redirect target &$article:Article object 'InternalParseBeforeLinks':during Parser's internalParse method before links but after nowiki/noinclude/includeonly/onlyinclude and other processings.&$parser:Parser object &$text:string containing partially parsed text &$stripState:Parser's internal StripState object 'InternalParseBeforeSanitize':during Parser's internalParse method just before the parser removes unwanted/dangerous HTML tags and after nowiki/noinclude/includeonly/onlyinclude and other processings.Ideal for syntax-extensions after template/parser function execution which respect nowiki and HTML-comments.&$parser:Parser object &$text:string containing partially parsed text &$stripState:Parser's internal StripState object 'InterwikiLoadPrefix':When resolving if a given prefix is an interwiki or not.Return true without providing an interwiki to continue interwiki search.$prefix:interwiki prefix we are looking for.&$iwData:output array describing the interwiki with keys iw_url, iw_local, iw_trans and optionally iw_api and iw_wikiid. 'InvalidateEmailComplete':Called after a user's email has been invalidated successfully.$user:user(object) whose email is being invalidated 'IRCLineURL':When constructing the URL to use in an IRC notification.Callee may modify $url and $query, URL will be constructed as $url.$query &$url:URL to index.php &$query:Query string $rc:RecentChange object that triggered url generation 'IsFileCacheable':Override the result of Article::isFileCacheable()(if true) &$article:article(object) being checked 'IsTrustedProxy':Override the result of IP::isTrustedProxy() &$ip:IP being check &$result:Change this value to override the result of IP::isTrustedProxy() 'IsUploadAllowedFromUrl':Override the result of UploadFromUrl::isAllowedUrl() $url:URL used to upload from &$allowed:Boolean indicating if uploading is allowed for given URL 'isValidEmailAddr':Override the result of Sanitizer::validateEmail(), for instance to return false if the domain name doesn't match your organization.$addr:The e-mail address entered by the user &$result:Set this and return false to override the internal checks 'isValidPassword':Override the result of User::isValidPassword() $password:The password entered by the user &$result:Set this and return false to override the internal checks $user:User the password is being validated for 'Language::getMessagesFileName':$code:The language code or the language we're looking for a messages file for &$file:The messages file path, you can override this to change the location. 'LanguageGetMagic':DEPRECATED!Use $magicWords in a file listed in $wgExtensionMessagesFiles instead.Use this to define synonyms of magic words depending of the language &$magicExtensions:associative array of magic words synonyms $lang:language code(string) 'LanguageGetNamespaces':Provide custom ordering for namespaces or remove namespaces.Do not use this hook to add namespaces.Use CanonicalNamespaces for that.&$namespaces:Array of namespaces indexed by their numbers 'LanguageGetSpecialPageAliases':DEPRECATED!Use $specialPageAliases in a file listed in $wgExtensionMessagesFiles instead.Use to define aliases of special pages names depending of the language &$specialPageAliases:associative array of magic words synonyms $lang:language code(string) 'LanguageGetTranslatedLanguageNames':Provide translated language names.&$names:array of language code=> language name $code:language of the preferred translations 'LanguageLinks':Manipulate a page's language links.This is called in various places to allow extensions to define the effective language links for a page.$title:The page's Title.&$links:Associative array mapping language codes to prefixed links of the form"language:title".&$linkFlags:Associative array mapping prefixed links to arrays of flags.Currently unused, but planned to provide support for marking individual language links in the UI, e.g.for featured articles. 'LanguageSelector':Hook to change the language selector available on a page.$out:The output page.$cssClassName:CSS class name of the language selector. 'LinkBegin':Used when generating internal and interwiki links in Linker::link(), before processing starts.Return false to skip default processing and return $ret.See documentation for Linker::link() for details on the expected meanings of parameters.$skin:the Skin object $target:the Title that the link is pointing to &$html:the contents that the< a > tag should have(raw HTML) $result
Definition: hooks.txt:1796
canAnimateThumbnail($file)
If the material is animated, we can animate the thumbnail.
getRotation($file)
On supporting image formats, try to read out the low-level orientation of the file and return the ang...
getDefaultRenderLanguage(File $file)
On file types that support renderings in multiple languages, which language is used by default if uns...
getMetadataType($image)
Get a string describing the type of metadata, for display purposes.
const MAX_ERR_LOG_SIZE
Max length of error logged by logErrorForExternalProcess()
getEntireText(File $file)
Get the text of the entire document.
isVectorized($file)
The material is vectorized and thus scaling is lossless.
getScriptedTransform($image, $script, $params)
Get a MediaTransformOutput object representing an alternate of the transformed output which will call...
wfDebugLog($logGroup, $text, $dest= 'all', array $context=[])
Send a line to a supplementary debug log file, if configured, or main debug log if not...
parserTransformHook($parser, $file)
Modify the parser object post-transform.
wfEscapeWikiText($text)
Escapes the given text so that it may be output using addWikiText() without any linking, formatting, etc.
isAnimatedImage($file)
The material is an image, and is animated.
unserialize($serialized)
Definition: ApiMessage.php:102
isMetadataValid($image, $metadata)
Check if the metadata string is valid for this handler.
this hook is for auditing only RecentChangesLinked and Watchlist RecentChangesLinked and Watchlist e g Watchlist removed from all revisions and log entries to which it was applied This gives extensions a chance to take it off their books as the deletion has already been partly carried out by this point or something similar the user will be unable to create the tag set and then return false from the hook function Ensure you consume the ChangeTagAfterDelete hook to carry out custom deletion actions as context called by AbstractContent::getParserOutput May be used to override the normal model specific rendering of page content as context as context $options
Definition: hooks.txt:1004
static getFormattedData($tags, $context=false)
Numbers given by Exif user agents are often magical, that is they should be replaced by a detailed ex...
static addMeta(&$array, $visibility, $type, $id, $value, $param=false)
This is used to generate an array element for each metadata value That array is then used to generate...
null means default in associative array with keys and values unescaped Should be merged with default with a value of false meaning to suppress the attribute in associative array with keys and values unescaped noclasses just before the function returns a value If you return an< a > element with HTML attributes $attribs and contents $html will be returned If you return $ret will be returned and may include noclasses after processing after in associative array form externallinks including delete and has completed for all link tables whether this was an auto creation default is conds Array Extra conditions for the No matching items in log is displayed if loglist is empty msgKey Array If you want a nice box with a set this to the key of the message First element is the message additional optional elements are parameters for the key that are processed with wfMessage() -> params() ->parseAsBlock()-offset Set to overwrite offset parameter in $wgRequest set to ''to unsetoffset-wrap String Wrap the message in html(usually something like"&lt
$params
getAvailableLanguages(File $file)
Get list of languages file can be viewed in.
getMetadata($image, $path)
Get handler-specific metadata which will be saved in the img_metadata field.
normaliseParams($image, &$params)
Changes the parameter array as necessary, ready for transformation.
getStreamHeaders($metadata)
Get useful response headers for GET/HEAD requests for a file with the given metadata.
static run($event, array $args=[], $deprecatedVersion=null)
Call hook functions defined in Hooks::register and $wgHooks.
Definition: Hooks.php:131
this hook is for auditing only RecentChangesLinked and Watchlist RecentChangesLinked and Watchlist e g Watchlist removed from all revisions and log entries to which it was applied This gives extensions a chance to take it off their books $tag
Definition: hooks.txt:965
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
Definition: distributors.txt:9
convertMetadataVersion($metadata, $version=1)
Convert metadata version.
getParamMap()
Get an associative array mapping magic word IDs to parameter names.
const METADATA_GOOD
parseParamString($str)
Parse a param string made with makeParamString back into an array.
getDimensionsString($file)
Shown in file history box on image description page.
sanitizeParamsForBucketing($params)
Returns a normalised params array for which parameters have been cleaned up for bucketing purposes...
static getGeneralLongDesc($file)
Used instead of getLongDesc if there is no handler registered for file.
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:35
static MediaHandler[] $handlers
Instance cache with array of MediaHandler.
verifyUpload($fileName)
File validation hook called on upload.
doTransform($image, $dstPath, $dstUrl, $params, $flags=0)
Get a MediaTransformOutput object representing the transformed output.
filterThumbnailPurgeList(&$files, $options)
Remove files from the purge list.
getThumbType($ext, $mime, $params=null)
Get the thumbnail extension and MIME type for a given source MIME type.
mustRender($file)
True if handled types cannot be displayed directly in a browser but can be rendered.
getShortDesc($file)
Short description.
static getHandler($type)
Get a MediaHandler for a given MIME type from the instance cache.
const METADATA_COMPATIBLE
visibleMetadataFields()
Get a list of metadata items which should be displayed when the metadata table is collapsed...
getPageDimensions(File $image, $page)
Get an associative array of page dimensions Currently "width" and "height" are understood, but this might be expanded in the future.
this hook is for auditing only or null if authentication failed before getting that far or null if we can t even determine that probably a stub it is not rendered in wiki pages or galleries in category pages allow injecting custom HTML after the section Any uses of the hook need to handle escaping see BaseTemplate::getToolbox and BaseTemplate::makeListItem for details on the format of individual items inside of this array or by returning and letting standard HTTP rendering take place modifiable or by returning false and taking over the output modifiable modifiable after all normalizations have been except for the $wgMaxImageArea check $image
Definition: hooks.txt:762
isEnabled()
False if the handler is disabled for all files.
getTransform($image, $dstPath, $dstUrl, $params)
Get a MediaTransformOutput object representing the transformed output.
canRotate()
True if the handler can rotate the media.
$version
Definition: parserTests.php:85
pageCount()
Returns the number of pages of a multipage document, or false for documents which aren't multipage do...
Definition: File.php:1969
static getGeneralShortDesc($file)
Used instead of getShortDesc if there is no handler registered for file.
Base media handler class.
$extensions
getCommonMetaArray(File $file)
Get an array of standard (FormatMetadata type) metadata values.
supportsBucketing()
Returns whether or not this handler supports the chained generation of thumbnails according to bucket...
Implements some public methods and some protected utility functions which are required by multiple ch...
Definition: File.php:50
pageCount(File $file)
Page count for a multi-page document, false if unsupported or unknown.
canRender($file)
True if the handled types can be transformed.
please add to it if you re going to add events to the MediaWiki code where normally authentication against an external auth plugin would be creating a local account incomplete not yet checked for validity & $retval
Definition: hooks.txt:242
do that in ParserLimitReportFormat instead use this to modify the parameters of the image and a DIV can begin in one section and end in another Make sure your code can handle that case gracefully See the EditSectionClearerLink extension for an example zero but section is usually empty its values are the globals values before the output is cached one of or reset my talk my contributions etc etc otherwise the built in rate limiting checks are if enabled allows for interception of redirect as a string mapping parameter names to values & $type
Definition: hooks.txt:2338
static newGood($value=null)
Factory function for good results.
Definition: Status.php:101
do that in ParserLimitReportFormat instead use this to modify the parameters of the image and a DIV can begin in one section and end in another Make sure your code can handle that case gracefully See the EditSectionClearerLink extension for an example zero but section is usually empty its values are the globals values before the output is cached $page
Definition: hooks.txt:2338
Allows to change the fields on the form that will be generated $name
Definition: hooks.txt:310
getLength($file)
If its an audio file, return the length of the file.